Ulfah Khulafah (2022) “UPAYA TOURISM PROMOTION ORGANIZATION (TPO) FOR ASIA PASIFIC CITIES DALAM MENDUKUNG PARIWISATA INDONESIA DI KOTA SURABAYA PERIODE 2016-2021”, Jurnal Pariwisata Indonesia, 18(2), pp. 13–23. doi: 10.53691/jpi.v18i2.280.